Steam generator



W. S. BOWEN.

STEAM GENERATOR.-

APPLICATION man FEB.16, 1920.

1,415,777, Patented May 9, 1922.

WILLIAM SPENCER BOW'EN, OF NEW YORK, N

STEAM GENERATOR.

To all whom it may, concern:

Be it known that l, TVILLIAM SPENCER BownN, a citizen the United States,re siding at New York, in the county of New York and State of New York,have invented new and useful Improvements in Steam Generators, of whichthe following is a specification.

My invention relates generally to improvements in steam generators andmore specifically to generators of a type using 1" diant heat,

The drawing illustrates my invention somewhat diagrammatically but issufiicient to disclose the underlying principles of the invention andenable a person skilled in the art towhich this invention relates to construct an operative device. In the drawings Fig. 1 shows a verticalsection of an emhodiment ofmyinvention the interior cones being shown bysingle lines but it will be understood that the thickness of thematerial employed can be varied.

Fig. 2 is an elevation of the outer cone and Fig. 3 is an elevation ofthe intermediate cone.

Two cones 6 are placed base to base witlr in the water jacket or casing16, and secured together by any suitable means such as bolts passingthrough flanges (not shown) 011 the same. The cones are indicated asmade of sheet metal as iron but infusible material may also be used ifdeemed advisable. When the generator is in operation each of these conesis surrounded by a flame contained within the annular space between cone6 and a similar cone 5. Cones 5 are connected directly to the fuelline 2which may conduct either gaseous or vaporized oil fuel. for use in thegenerator.

Air is admitted through the air pipe 3 which preferably surrounds thefuel pipe 2 and connects to the outer cones 4 so as to feed compressedair into the annular space between cones 1: and 5. The surface of cone 5is provided with a multiplicity of perforations and the bases of thecones t are closed so that all air admitted to the annular space betweencones l and 5 must pass through these perforations; In this way completefuel and air mixture and a hot blue flame is obtained. The conicalexpansion of the flame has a good effect on its burning, since it slowsdown the initial fuel velocity so that Specification of Letters Patent.

temperature the Patented May 9, 1922.

Application filed February 16, 1920. Serial No. 359,079.

mixture and burning can take place more easily and evenly.

Water fed to the water jacket by connection 17 which leads to a waterpump (not shown). After circulating through the water jacket andbecoming heated to a high water under high pressure is conducted by pipe1 to the mechanical spray caps 7 which deflect it in the form of anatomized spray. It should be noted that the water spray has no directcontact with the flame and receives its heat almost solely by radiation.also as the water is at a high temperature and pressure. its release tothe pressure within the cone 6 will cause it to burst into steam.

The steam gene 'ated passes out through ports 14-. formed in the cones 6into the general receiving chamber within the casing 16. This casing iswater jacketed as above described for preheating the feed water and issurrounded with asbestos (not shown). for retaining the heat.

The cones 4, 5 and 6 act upon the steam and gases of combustion tosuperheat them before they pass out through outlet pipe 15. At the hightemperature produced, the carbon of the fuel combines not only with theoxygen of the air but also with that of the steam, thus leaving nascenthydrogen in intimate mixture with the nitrogen of the air, alsoincandescent. Thus the mixture produced contains carbon dioxide (COsteam (H 0) and ammonia (NH and it will be understood used in doii'iguseful work they may be separated and recovered for commercial use.

The numeral 9 designates a flange and 10 a base bored out so as to formthe cavity 11 through which all the interior apparatus can be removed. Aclosure plate 12 is provided which may be bolted to the plate 10.

A spark plug 18 is provided in each of the cones 5 for initiating theburning of the combustible mixture.

The walls of cones 6 being in contact with the flame become red hot.These cones being base to base, radiate their heat to each other. Thisradiated heat is reflected and re-reflected within the cone receivingthe radiation until the heat is completely absorbed.

Having thus described my invention what I claim and desire to secure byLetters Patent is as follows:--

1. A. steam generator comprising a casing that after the gases areprovided with a water jacket, a hollow conical body within and spacedfrom said jacket having outlet ports therein, a source of heat withinthe casing and Surrounding said conical body and means for introducingwater from said jacket to the interior of said body in theform of afinely divided spray.

2. A steam generator comprising a casing, a pair of conical shellshaving a common base placed coaxially within said casing, bothof saidcones having apertured shells, means for introducing a water spray inthe interior of said cones, means for supplying combustible mixtureabout the exterior of said cones and means for supplying air underpressure to said combustible mixture to support the combustion thereof,whereby the steam generated in said shells may escape through theapertures thereof and mix with the products of combustion.

3. A steam generator comprising a water jacket and a series of coaxialconical shells within said jacket having annular spaces therebetween',means for introducing water from said jacket to the inner conical shell,mechanism for mixing fuel and air in the annular space surrounding theinner shell and means for igniting said mixture whereby the burninggases envelop the inner conical shell.

4. A steam generator comprising a casing, a plurality of. coaxialconical shells within said casing, means for introducing a water sprayinto the inner conical shell, a source of heat; within said casingapplied exteriorly to said inner shell for radiating heat into thelatter for vaporizing the water introduced therein, a. base for saidcasing having an opening, through which the assembly of conical shellsmay be inserted and a removable plate for normally closing said opening.

5. A steam generator comprising a casing, a central conical shell havingan aperture formed therein, means for introducing a water spray to theinterior of said shell, a perforated conical shell arranged coaxiallywith said central shell and spaced there from, means for supplyingcombustible mixture to the space between said conical shells, and anouter conical shell for supplying air under pressure to the combustiblemixture through said perforated shell.

6. A steam generator comprising a casing, an inner conical shell havinga plurality of steam outlet ports, a plurality of outer conical shellsarranged coaxially in spaced relation thereto, means for introducing awater spray into said inner shell, the spaces between said conicalshells forming fuel and air passages, one of said outer conical shellsbeing perforated whereby the fuel and air may mix and form a combustiblemixture and means for igniting said mixture for vaporizing said water byradiation and absorption within said inner conical shell and easing.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

WILLIANl SPENCER BOWEN.

Witnesses MARIE V. WALSH, R. W. LICKLEY.

